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CVE-2026-90266

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge

On a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever the over-committed metadata plus the zone_unusable bytes exceeds the usable size in a metadata block-group to avoid heavy over-commit of metadata and early ENOSPC in one transaction.

If this happens while doing reclaim, the transaction is getting aborted.

Treat -EAGAIN as a soft, retryable condition in case of block-group reclaim.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-90266",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7bcb04de982ff0718870112ad9f38c35cbca528b",
              "lessThan": "8249dfe46337d599e2087b772a2e32ef9f77282b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7bcb04de982ff0718870112ad9f38c35cbca528b",
              "lessThan": "e549093c11a2fff8430df3dfbdb45eb9811a69a5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/btrfs/block-group.c",
            "fs/btrfs/relocation.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.1",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/btrfs/block-group.c",
            "fs/btrfs/relocation.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:23.147",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge\n\nOn a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever\nthe over-committed metadata plus the zone_unusable bytes exceeds the\nusable size in a metadata block-group to avoid heavy over-commit of\nmetadata and early ENOSPC in one transaction.\n\nIf this happens while doing reclaim, the transaction is getting aborted.\n\nTreat -EAGAIN as a soft, retryable condition in case of block-group\nreclaim."
    }
  ],
  "lastModified": "2026-09-17T17:17:23.147",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}